KYN28A-24 (Z) Metaldad Swilchgear Panel, Withdrawable type
Product Description
1. General
1.1 Ratings: system voltage 24kV rated current up to 1250A, AC 50/60Hz,
1.2 Application: applicable for power receiving and distribution of power plant and substations for control, protection and measurement,
1.3 Standarcls: IEC 62271-200
2.Type Desigiation
3. Main Technical Parameter
| Item | Unit | Data |
| CB fitted | ||
| NV1-24 | ||
| Rated voltage | kV | 24 |
| 1 min power frequency withstand voltage | kV | (50)65 |
| Rated impulsewithstand voltage(peak) | kV | 125 |
| Rated frequency | Hz | 50(60) |
| Rated current | A | 63012501600200025003150 |
| Rated current of branch bus | A | 6301250160020002500 |
| Rated short time withstand current | kA | 16202531.5 |
| Rated peak withstand current | kA | 40506380 |
| Rated short circuit continuous time | s | 4 |
| Protection leve | Shell:IP4X,IP2Xwhen CPT and CB door are open | |
| Weight | kg | 800,1000(rated current ≥1600A) |
Product Overview
Type armored removable ACmetal-enclosed switchgear
KYN28A-24 armored removable AC metal-enclosed switchgear(hereinafter referred to as switchgear), suitable for indoorthree-phase 50160Hz, 24kV rated voltage power system, mainly used in power plants, substations, industrial and miningoperalions.in enterprises and high-rise buildings, as a means of receiving and distributing electrical energy and controling.protecting and monitoring circuits.The KYN28A-24 switchgear has various functions to prevent misoperation, including preventing the handcart from moving withoad, preventing the grounding switch from closing the circuit breaker, preventing the grounding switch from being energizedand oreventina accidental entry into the live compartment, The switchaear is eauipped with VS1., yN2 serles medlym-mountedhigh-voltage AC vacwum circult breakers and sold-sealed vacuum switches with excellent performance. The secondary circultof the switchgear is equipped with advanced and reliable control and protecion components; the busbar adopts heat-shrinkableinsulation material or epoxy-coated insulation means to optimize the shape of the electrode, and the cabinet structure iscompact, The svitchgear is advanced in technology, stable in peformance and reasonable in structure. it is an easy to use,safeand reliable power distribution eauipment
Model meaning:
Conditions of use:
Altitude: no more than 1000m:
Ambient temperature: maximum temperature:+40'c,minimum temperature:-15'c,and the average value measuredwithin 24 h does not exceed35℃:
Relative humidity: the average value of dally relative humidity does not exceed 95%;the average value of monthlyrelative humidity does not exceed 90%;the average value of daily water vapor pressure does not exceed 2.2 kPa:theaverage value of monthly water vapor pressure does not exceed 1.8kPa:The surrounding alr is not obviously contaminated by dust, smoke, corrosive or flammable gases, steam or salt sprayVibration or ground motion from outside the switchgear and control equipment is negligible:The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV
| Project | Unit | Parameter | ||||
| Rated voltage | kV | 24 | ||||
| Ratedfrequéncy | Hz | 50/60 | ||||
Rated insulation leve |
1min Powerfrequēncywithstand voltage(RMS) |
kV | Relatively |
60 | solationfracture |
79 |
Lightning impulse withstand voltage(peak) |
125 | 145 | ||||
| Auodliary controlloop powerfrequancy withstand voltage | v | 2000 | ||||
| Rated current | A | 630、1250、1600、2000、2500、3150 | ||||
| Rated short-circuit breaking current | kA | 20 | 31.5 | |||
| Rated short-circuit breaking current | kA | 50 | 80 | |||
| Ratedshort-timewithstand current(4s) | kA | 20 | 31.5 | |||
| Rated peakwithstand current | kA | 50 80 | ||||
| Auxilary control loop ratedvoltage | v | DC or AC 110/220 | ||||
| Protection level | IP4X(breaker door open or IP2X between compartments) | |||||
| Dimensions(W×D×H) | mm | 800×1810×2380 1000×1810×2380 | ||||
| Weight | Kg | 840~1440 | ||||